{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "trigger": true, "arguments": ["Treatment.Freq", "Treatment.Time_elapsed", "Treatment.Duration", "Subject.Gender", "Effect", "Treatment.Dosage", "Treatment.Disorder", "Treatment", "Subject.Population", "Treatment.Route", "Combination.Drug", "Treatment.Drug", "Subject.Race", "Subject.Disorder", "Subject", "Subject.Age"]}], "input": "We report the case of a 17-year-old male who developed chest pain, elevated cardiac biomarkers, and acute left ventricular dysfunction following a single dose of methylphenidate."}
{"adverse event": [{"trigger": "following ", "arguments": {"Treatment.Freq": "NAN", "Treatment.Time_elapsed": "NAN", "Treatment.Duration": "NAN", "Subject.Gender": "male", "Effect": "chest pain, elevated cardiac biomarkers, and acute left ventricular dysfunction", "Treatment.Dosage": "a single dose", "Treatment.Disorder": "NAN", "Treatment": "a single dose of methylphenidate", "Subject.Population": "NAN", "Treatment.Route": "NAN", "Combination.Drug": "NAN", "Treatment.Drug": "methylphenidate", "Subject.Race": "NAN", "Subject.Disorder": "NAN", "Subject": "a 17-year-old male", "Subject.Age": "17-year-old"}}]}